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Add ifdefs for psa_internal_export_key function

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MBEDTLS_PK_WRITE_C only requires either MBEDTLS_RSA_C or MBEDTLS_ECP_C to be defined.
Added wrappers to handle the cases where only one has been defined.
Moved mbedtls_pk_init to be within the ifdefs, so it's only called if appropriate.
This commit is contained in:
Darryl Green 2018-07-24 16:33:30 +01:00 committed by Jaeden Amero
parent 10ccc641ac
commit 9e2d7a09f1
2 changed files with 11 additions and 1 deletions
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1
include/psa/crypto.h
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@ -1174,6 +1174,7 @@ psa_status_t psa_get_key_information(psa_key_slot_t key,
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_EMPTY_SLOT
* \retval #PSA_ERROR_NOT_PERMITTED
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_COMMUNICATION_FAILURE
* \retval #PSA_ERROR_HARDWARE_FAILURE
* \retval #PSA_ERROR_TAMPERING_DETECTED

11
library/psa_crypto.c
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@ -787,16 +787,25 @@ static psa_status_t psa_internal_export_key( psa_key_slot_t key,
{
mbedtls_pk_context pk;
int ret;
mbedtls_pk_init( &pk );
if( PSA_KEY_TYPE_IS_RSA( slot->type ) )
{
#if defined(MBEDTLS_RSA_C)
mbedtls_pk_init( &pk );
pk.pk_info = &mbedtls_rsa_info;
pk.pk_ctx = slot->data.rsa;
#else
return( PSA_ERROR_NOT_SUPPORTED );
#endif
}
else
{
#if defined(MBEDTLS_ECP_C)
mbedtls_pk_init( &pk );
pk.pk_info = &mbedtls_eckey_info;
pk.pk_ctx = slot->data.ecp;
#else
return( PSA_ERROR_NOT_SUPPORTED );
#endif
}
if( export_public_key || PSA_KEY_TYPE_IS_PUBLIC_KEY( slot->type ) )
ret = mbedtls_pk_write_pubkey_der( &pk, data, data_size );